fix: adding null check

Signed-off-by: Pawel Psztyc <jarrodek@gmail.com>

Author: jarrodek

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "@api-components/amf-web-api",
   "description": "A web service parsing APIs with the AMF parser.",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "license": "Apache-2.0",
   "main": "index.js",
   "module": "index.js",

package.json

@@ -181,7 +181,7 @@ export class AmfParser {
     } else {
       this.result = /** @type any */ (result.result);
     }
-    if (this.process.connected) {
+    if (this.process && this.process.connected) {
       this.process.disconnect();
     }
   }
@@ -193,7 +193,7 @@ export class AmfParser {
     // console.error(err);
     this.status = 'failed';
     this.error = err.message;
-    if (this.process.connected) {
+    if (this.process && this.process.connected) {
       this.process.disconnect();
     }
   }